Improvement in dies for stamping



2 Sheets-Sheetl.

H. MARTYN.

DIES FOR STAMPING. No.179,208, Patented June 27,1876. Fi/gli NAPETERS. FHOTD-UTHOGRAPNER. wASHlNGTON. D c.

2 Sheets-Sheet 2.

H. MARTYN.

DIES FOR STAMPING. No, 179,208, Patented June 27,1876. I'zlyf.'

di 7 f N. PETERS, PNoTu-UTMOGRAFMER. WASHINGTON, D` C.

UNITED STATES HENRY MARTYN, OF EAST MEDFORD, MASSAOHUSETTH IMPROVEMENT IN DIES FOR STAMPING.

Specification forming part of Letters Patent No.

April To all whom tmm/ concern Y Be it known that I, HENRY MARTYN, of East Medford, of the county of Middlesex and State of Massachusetts, h ave invented a new and useful Improvement in Dies or Mechanism for the Manufacture of Boxes or Pans from Sheet Metal or Material; and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l is a top view, Fig. 2 alongitudinal section, and Fig. 3 a ytransverse section, of a set of expansive dies and die-carrier of my improved kind. Fig. 4 is an underside view of such. Fig. 5 is a top View of the series of expansive dies apart from one another, Figs. 6 and 7 heilig sectional views of them. Fig. S is a bottom view of them'. are side views of the longitudinal and trans verse bars used in the carrier, and with the expansive die. Fig. ll is a side view, and Fig. 12 an end view, of the malel die or plunger.

The female of the said dies is provided with corner recesses a and lips b thereto, to turn and fold the sheet of metal at the corners, and upon the sides or ends or bottom of the pan,`boxbody, or cover, and is composed ot' a series of angular sections, A A A A, constructed or scarfed and arranged to overlap one another, so asl to form joints oblique to the direction of movement of the male die, in

such female die.

Figs. 9 and 1Q 179,208, dated June 27,1876; applicationiled 5, 1876.

them and the said carrier several sets of separate bars, G'C O, are disposed in manner as shown; springs D D D D being also arranged between such bars, so as to press the sections together, and allow them to move asunder under the action of the male die. By havthey can spread apart while in use without causing vertical creases or grooves in the pan or box While the metal or material to compose it may be in the actv of being forced through the female die. The sepa-rate bars make box-bodies, pans, or covers of diEerent sizes, to be made with the same sectional fe? male die, as by removing more or less of the said bars from the carrier the sections may be expanded to a greater extent, so as to be capable of making larger articles than when all the bars are in place.

I do not herein claim a sectional expansive die provided with corner lips and foldingcavities, and having the sections to abut against each other, with `joints at right angles to them.

I claim as my invention- 1. For the purpose set forth-viz., the making of boxes or pans-a sectional female die, having each of its sections scarfed upon those next to it.

2. Each section A, provided with the two scarfs c d to each of its arms f, all substantially as shown and described.

3. Each section, provided with the two scarf's c d to each arm f, and with the tongue e and groove g arranged with it, as set forth.

4. The combination of the series of separate bars C with the carrier B and the expansive sectional female die A A A A, all

being arranged and provided with springs D,

essentiallyr as specified.

HENRY MARTYN.

Witnesses:

R. H. EDDY, J. R. SNOW.

ing the sections scarfed upon one anothei`- 

